Ross Detwiler - Detwiler got the start Thursday for the Nationals, filling the spot vacated by Jason Marquis. It was thought that Brad Peacock would get the nod, but Washington elected to go with Detwiler. Detwiler was called up and started July 5 against the Cubs, but since then, he had been pitching in the bullpen. He held Colorado to two runs on five hits and three walks in five innings Thursday, but prior to this start, Detwiler had a 5.08 ERA and 58:43 K:BB ratio in 102.2 innings over 20 career starts. With Detwiler starting, Tom Gorzelanny will pitch out of the bullpen for the time being, though we will have to see if Detwiler remains in the rotation or if Peacock gets a promotion. In addition, down the road Jordan Zimmermann will be shut down, though Stephen Strasburg may step in for him, but if not Detwiler could stay/move in to the rotation. Mixed: $0; NL: $2

Nathan Eovaldi - Eovaldi was promoted from Double-A Chattanooga and started for the Dodgers on Saturday, picking up the win by allowing just two runs on four hits and two walks with seven strikeouts in five innings. Eovaldi went 6-5 with a 2.62 ERA, 1.18 WHIP, 99 strikeouts and 46 walks in 103 innings over 19 starts for Chattanooga and ranks as one of the team's top prospects. He always had a great fastball, but it was the development of his curve and changeup that propelled him up the ladder of Dodgers' prospects this year and earned him a callup. There is potential for dominance but be prepared for some growing pains along the way. Mixed: $2; NL: $7

Edgar Gonzalez - With Juan Nicasio landing on the DL with a broken neck after getting hit by a line drive Friday, the Rockies are in need of a starter. Greg Reynolds was called up Saturday, but he gave up four runs in one inning Saturday and is clearly not the answer. With several injuries and few candidates, Colorado may need to turn to Gonzalez, who had his second straight effective start for Triple-A Colorado Springs on Saturday. Gonzalez last pitched in the majors for Oakland in 2009 and has bounced around since then so don't expect much. Mixed: No; NL: $0

Hiroki Kuroda - If you focus solely on the win and losses, Kuroda would not be someone who should be highlighted in this week's column. However, a look beyond those numbers shows a pitcher who has deserved a much better fate. Kuroda was a hot commodity at the trade deadline but opted to stay in LA, where he is comfortable with the team and environment. On the mound, Kuroda has posted a solid 2.96 ERA, 1.210 WHIP and 111:38 K:BB ratio in 140 innings, but is just 7-13 on the year. The one negative - other than the win-loss - is the better than average .795 strand rate, resulting in a 3.81 FIP, though that ERA would still be pretty solid with normalization. Mixed: $7 (doubtful he is available but record may have scared off a few owners)

Brad Lincoln - The Pirates recalled Lincoln from Triple-A Indianapolis on Saturday. Lincoln figures to pitch out of the bullpen for the Pirates, but if James McDonald is forced to miss a start due to a blister on his pitching hand, Lincoln would likely be the pitcher to replace him in the rotation. McDonald's next start is scheduled for Tuesday, so expect a decision on Lincoln's role to be made in the next couple days. Lincoln got off to a rough start in the minors after starting the year on the DL with a forearm injury, but started to right the ship in May. Since then, he's been mostly good, but he has been up-and-down of late and is coming off a three-inning, 11-hit, six-run outing in his last start. Overall, Lincoln is 7-8 with a 4.19 ERA and 94:21 K:BB ratio in 111.2 innings for Indianapolis. Mixed: $0; NL: $2

Mike Minor - The Braves recalled Minor from Triple-A Gwinnett on Saturday. Minor will jump right into the rotation and start Sunday's game in place of Jair Jurrjens, who was placed on the DL with a strained knee. He was only average in six starts with the big club earlier this season, but he has shown in the minors that he the talent to ably fill Jurrjens' spot in the rotation for the next few weeks. Mixed: $2; NL: $7

Roy Oswalt - I profiled Oswalt, who had been out since June 24 and had a series of injections on July 8 to reduce the inflammation in his back caused by a bulging disc, two weeks ago when he threw a few bullpen sessions and was slated to begin a minor league rehab assignment. Oswalt made his first rehab start July 27, throwing four innings at Scranton. He gave up one run on one hit and two walks while striking out four over 72 pitches. Oswalt made his second rehab start for Triple-A Lehigh Valley on Monday, throwing 90 pitches, 61 for strikes. He allowed two runs on seven hits while sitting around 90-91 mph with his fastball. Oswalt was activated off the disabled list and start Sunday's game against the Giants, pushing Kyle Kendrick to the bullpen. Mixed: $7; NL: $19

Jonathan Sanchez - Sanchez, who has been out since June 25 with biceps tendinitis, was activated from the disabled list Monday and started Friday. He gave up five earned runs on seven hits and two walks while striking out four through 4.2 innings to take the loss against the Phillies. Sanchez labored most of the way, tossing 85 pitches while surrendering two early home runs in his start. The Giants hope that it was just rust for Sanchez, who last started in the minors on July 28, but given his erratic history, that may be just wishful thinking. That said, with Barry Zito landing on the DL with the same foot injury that sidelined him earlier this year, Sanchez should remain in the rotation. Mixed: $5; NL: $14

Stephen Strasburg - The Strasburg 2011 Watch has started in earnest, though it pales in comparison to last year's hype. Strasburg, whose 2011 season was cut short due to Tommy John surgery, is scheduled to pitch two innings for Low-A Hagerstown in his first rehab start Sunday. Once he makes that start, the Nationals will be able to keep him in the minors for 30 days before deciding whether or not to use him in the majors this season. There is still an outside shot Strasburg, who has his fastball back to the mid-90s, pitches for the major league team again this season, something that he hopes to do. If that happens, he likely replaces Jordan Zimmermann in the team's rotation as Zimmermann probably makes just three more starts before he hits his innings limit. Mixed: $3; NL: $9 (speculative bid, up more if long-term keeper league)

Relief Pitchers:

Javy Guerra - The Dodgers as a whole have had a disappointing year, but mixed in there has been some surprising performances. Guerra has to qualify as one of those pleasant surprises as he earned his 10th save of the season Friday and is now a perfect 8-for-8 since the beginning of July. He has now held the opposition scoreless in his last 10 outings, giving up just two hits over his last seven appearances and continuing to improve his strikeout rate. Guerra probably never be the dominant closer so many fantasy owners covet, but his 1.68 ERA and 1.16 WHIP are nothing to thumb your nose at right now. For all the talk of Jonathan Broxton, Hong-Chih Kuo, Kenley Jansen and Vicente Padilla, Guerra has been the most effective Dodgers reliever this year and should maintain a stronghold on the closing job for the remainder of the season. Mixed: $10; NL: $25 (upgrade based on performance)

Catchers:

Ryan Doumit - Doumit, out since May 30 with a non-displaced fracture in his left ankle, was activated off the disabled list Wednesday. Doumit played in 13 rehab games between High-A Bradenton and Triple-A Indianapolis, going 8-for-40 at the plate while throwing out 2-of-13 basestealers. For the time being, he is sharing time with Mike McKenry, who did a solid job while Doumit was out, but he should progress into seeing most of the plating time behind the plate. Mixed: $4; NL: $11

First Basemen:

Jesus Guzman - All Guzman does is continue to hit. He had two more hits Saturday, extending his hitting streak to six games, and since the All-Star break, he is leading the team with a .390 average, three home runs and 21 RBI in 18 games. With Brad Hawpe out for the year following surgery and despite Anthony Rizzo's hot streak again in the minors, first base should be Guzman's for the foreseeable future. Guzman's numbers in the majors are just a continuation of how he hit in the minors, where he posted a .332/.423/.529 line with 57 RBI and 31 extra-base hits in 244 at-bats. Mixed: $16; NL: $40

Jerry Sands - Sands is getting time at first base for Triple-A Albuquerque, and could be the long-term solution at that position should the Dodgers non-tender James Loney in the offseason. Loney would probably stand to make $6 million or more in arbitration next year, which is far too much given his mediocre production. Sands, who struggled in his stint with Los Angeles earlier in the year, has 20 homers and 60 RBI in 253 at-bats for Albuquerque, though keep in mind the PCL is a hitter-friendly league. Mixed: $1; NL: $4 (early speculative bid)

Second Basemen:

Alfredo Amezaga - The Marlins acquired Amezaga from the Rockies on Saturday in exchange for minor league infielder Jesus Merchan. Amezaga has spent the last few months in Triple-A, but he will be immediately called up to serve in a utility role with the Marlins, the team for which he played from 2006-09. He started at second base Saturday, a role he should fill with Omar Infante out with a broken middle finger and Florida designating Joe Thurston for assignment to make room for Amezaga. Mixed: $0; NL: $3

Jimmy Paredes - The Astros promoted Paredes, who came over to Houston last year in the Lance Berkman trade, from Double-A Corpus Christi. Paredes was hitting .266/.296/.414 with nine home runs, 39 RBI and 29 steals at Corpus Christi and was converted this offseason to third from second base to make room for Jose Altuve. Paredes replaces the demoted Chris Johnson at third base, and while some growing pains are to be expected, at the very least he should provide some speed with a modicum of power and batting average, albeit with a low OBA and healthy dose of strikeouts. Mixed: $3; NL: $9

Shortstops:

Yuniesky Betancourt - Betancourt went 4-for-5 with an RBI in Milwaukee's win over the Astros on Saturday. He also extended his current hitting streak to nine games after Saturday's great game at the plate. Betancourt is beginning to make general manager Doug Melvin and the Brewers look very wise for not making a trade for a shortstop before the trade deadline or replacing him with Josh Wilson, as he continues to be on a tear at the plate. His batting average on the season now sits at .264 to go along with eight home runs and 45 RBI after going 26-for-68 with three home runs and 15 RBI since July 17, just don't expect too much OBA help given his weak BB:PA ratio. Mixed: $4; NL: $13

Third Basemen:

James Darnell - Chase Headley's fractured left pinkie could result in a DL stint paving the way for Darnell to be promoted. Darnell killed Double-A pitching in San Antonio, to the tune of a 1.038 OPS in 288 at-bats. The third baseman added 17 home runs and 62 RBI, while walking more than he struck out. Those numbers earned him a promotion to Triple-A Tucson, where he has six home runs and 13 RBI along with a .272 average. However, those numbers are only so-so as he started 8-for-22 with three home runs in his first five games there. Still just 24, Darnell will need to show he can handle third base defensively, as he has struggled with his footwork and accuracy, plus hold off a hard charging Jedd Gyorko, who is hot on his heels at Double-A San Antonio. In the meantime, Logan Forsythe will see some time at third until Headley's status is determined. Mixed: $2; NL: $7 (early speculative bid).

Greg Dobbs - Dobbs has been seeing playing time this week at third base with Emilio Bonafacio moving to shortstop to cover for the injured Hanley Ramirez. If Ramirez lands on the DL for his sprained shoulder, Dobbs should continue to see most of the action at third, spelled by Wes Helms. Mixed: $1; NL: $4

Juan Francisco - Francisco, who missed almost a month with a torn right meniscus, was activated off the Triple-A disabled list and optioned down to Louisville. He showed no ill effects from the injury, going 3-for-5 with a home run in his first game back Friday and could be an option later this season along with Todd Frazier at third base for Cincinnati. Mixed: No; NL: $2

Michael Martinez - Placido Polanco left Saturday's game with left hip soreness and said after the game, he'd been dealing with a sore hip for about a month now. He'll go for an MRI and X-rays, which could open the door for Martinez to see more playing time. Martinez did a solid job filling in for Polanco when he missed about a month with a back injury and qualifies at second, third and in the outfield. Wilson Valdes may also factor in the mix at third while Polanco is out. Mixed: $2; NL: $7

Outfielders:

Rick Ankiel - I profiled Ankiel last week, when it looked as though he was going to be the Nats' primary center fielder again. To say Ankiel has made the most of this chance is a mild understatement, as he extended his hitting streak to six games with a home run Saturday. Over his streak, he's gone 10-for-28 (.357) with four home runs and nine RBI, giving him seven homers and 26 RBI on the year for the Nationals. Those totals are pretty close to what he posted last year in a similar number of at-bats, but with few other options available for Washington (especially after missing out on Denard Span), look for Ankiel to be out there nearly every day and enjoy the production while he stays hot. Mixed: $3; NL: $11

Jason Bay - Bay continued his recent resurgence, going 2-for-5 with a home run and three RBI in the Mets' 11-7 win over the Braves on Saturday. Bay extended his hitting streak to eight games, during which he has gone 13-for-32 with six extra-base hits, including two home runs, and eight RBI. If for some reason he was dumped in your league, this may be the time to take a flier on him and hope the hot streak continues. Mixed: $7; NL: $18

Brian Bogusevic - The Astros called up Bogusevic from Triple-A Oklahoma City on Sunday. After the Astros' slew of moves, Houston had an open roster that Bogusevic fills. He is seeing occasional action in left, with Carlos Lee having moved to first following the demotion of Brett Wallace, but likely will go back down when Jordan Schafer comes off the disabled list. Mixed: No; NL: $0

Jose Constanza - Despite the acquisition of center fielder Michael Bourn, Constanza has remained with the Braves. Constanza has started each game since being recalled on July 29 seeing time in left and right. That action has come because Chipper Jones has been banged up, forcing Martin Prado to play third, and Jason Heyward's slump has landed him on the bench. Even when Atlanta is at full strength, Constanza should remain with the team, and even though he is unlikely to see regular playing time, he could see some spot action when the everyday guys need a day off. Mixed: $1; NL: $5

Aaron Cunningham - Cunningham was recalled Monday to take the roster spot of the traded Ryan Ludwick. With Ludwick getting sent to the Pirates on Sunday, Cunningham and Kyle Blanks will likely share the left field duties for the Padres going forward. For his part, Cunningham was hitting .329 in Tucson with nine home runs, 63 RBI and a .931 OPS in 340 at-bats but struggled at the plate through limited action with the Padres this season. With Ludwick gone and Chris Denorfia nursing a right hamstring injury that landed him on the disabled list Saturday, Cunningham has been in the lineup in right field nearly every day. We tend to believe Cunningham will be the club's fourth outfielder once everyone is healthy, but for now, he should continue to see extended playing time. Mixed: $2; NL: $7

Mark DeRosa - DeRosa, out since May 19 with a partially torn tendon in his left wrist, the same wrist that he's had so many problems with already, was activated from the disabled list and added to the Giants' major league roster Friday. DeRosa will primarily serve as a backup at first base, likely seeing starts against left-handed pitchers. He hit .308 during his 39 at-bat rehab assignment, mostly at the Triple-A level. Mixed: $0, NL: $2

Nick Evans - Evans has ridden the Triple-A Buffalo to New York shuttle once again as he was promoted Saturday. Mike Nickeas was optioned back to Buffalo, while Evans should be given a small utility role for the Mets as they don't have any significant injuries in their everyday cast at the present time. Mixed: No, NL: $0

Carlos Gonzalez - CarGo, out since July 21 but bothered since July 3 with strained and inflamed ligaments in his right wrist, was activated off the disabled list on Saturday. The Rockies were cautious with Gonzalez, not risking returning him to action before he was completely healthy. Get him active ASAP (just an FYI as he's owned in all formats)

Scott Hairston - Lucas Duda is still likely to be the primary beneficiary of the Carlos Beltran deal, but Hairston could factor in the mix. Hairston homered twice last Sunday and had two hits in a start on Tuesday. In 105 at-bats, he is hitting .276/.343/.553 with seven home runs and 14 extra-base hits in his 29 hits. Hairston will mainly start against left-handed pitchers, but should still see some action against righties and provide a power bat off the bench. Mixed: $0, NL: $3

John Mayberry - Mayberry went 2-for-5 and hit his ninth home run of the season Friday night. He had two runs scored and two RBI in the Phillies' win. Mayberry has pushed ahead of Ben Francisco on the depth chart with his three home runs and five RBI over his last four games, but remains just a fourth outfielder still. He'll get the occasional start in lieu of Raul Ibanez, but he is a bench player at best. One thing to keep in mind is that he could be in line for additional time if Shane Victorino is handed a suspension for his actions and ejection from Friday's game. Mixed: $2, NL: $7

David Sappelt - The Reds recalled Sappelt from Triple-A Louisville prior to Sunday's game to take the place of the injured Chris Heisey (oblique) on the roster. It remains to be seen what role Sappelt will fill, but with Heisey landing on the DL in the corresponding move, it seems likely that Sappelt will get some playing time in left field. Sappelt, who is an above-average hitter, posted a .313 average in 74 games with Louisville this season, but had just seven home runs and four stolen bases. He hit .415 in his last 10 minor league games and could be an option to lead off, at least in the short term, for Cincinnati. Mixed: $1, NL: $4

J.B. Shuck - Shuck was called up from Triple-A Oklahoma, becomes the third member - along with Jason Castro and Jordan Lyles - from the team's 2008 draft to make the majors. Shuck was hitting .302 with no home runs, 27 RBI and a 52:29 BB:K ratio in 331 at-bats at Oklahoma. He'll share time in the outfield with Jason Bourgeois, Jason Michaels and J.D. Martinez, seeing most of his time at the corner spots. He projects to be a fourth outfielder, using his solid eye at the plate and speed to carve out a role in the majors. Mixed: No, NL: $2

Blake Tekotte - The Padres recalled Tekotte from Double-A San Antonio on Saturday. Tekotte was already called up and sent down this week, but the Padres decided to bring him back after placing Chris Denorfia (hamstring) on the disabled list Saturday. Tekotte resumes his role as a reserve outfielder. Mixed: No; NL: $0